I managed to do my hand brake last year. Unlike Jay I didn't strip the inside of the mog out. ( I can't find the post to help Jay on how).
The cable is attached to the shoes by twisting the hand brake lever shoe out a bit once the retaining spring to back plate is removed. A pair of long nosed piers to locate the nipple into the lever (hook the spring on the leading edge and then flip the niple over.
My cable is now only fixed at the axle end and the front. not in the middle you need a 90' ratchet screw driver to release the cable from fixings and undo the prop from axle end to give the room to work in.
